1997 Oldsmobile 88 lost power

I lost all 3 mentioned devices at the same time, When you hit the A/C or rear defrost an indicating lite should come on within the button, they will not. I than tried the fan. It to was dead. The fan motor has no power to it. I have jumped 12 volts to it and it runs. I really feel I lost the hot that goes up to these 3 switches but its a bitch to get at so was hoping to find the wire that feeds up under the dash. I would than confirm no power, and add a fused jumper to feed that switch assembly. I am an electrician and just a correct 1997 olds 88 electrical print of this part of my system would help alot.

This may be the schematic that will send me in the right direction, but when I blow it up, it can not be read. Any other options on sending it?

First off I want to thank you for being so patient.

This morning I got the switch assembly that is causing my problems, out from my dash. It has a circuit board that may be my issue but in case it is a power feed issue, Does your print show what color wire would feed power to the Rear defrost push button, A/C push button, and the temperture control knob? I lost all three at the same time so I'm hoping one feed wire is my problem. Thanks again.

Ed